Drive Mechanism is high valtage vacuum circuit breaker's (VCB) power source, our spring drive mechanism is have advantages as below : 1 good quality 2 reasonable price 3 offerOEM service



This drive mechanism is vacuum's power source is sole used in Chinese Model ZN28A VCB which mounted on width of 350 ,10kV fixed switchgear cabinet,or other resemble Closing work of VCB.It also widely used in Chinese Model GG-1AXGN2,ect.switchgear cabinet. Its closing spring has two energy storage ways: electric energy storage and manual energy storage.
There are three openging operations: openging magnet,over-current releaser,manual button.
And two closing operations: closing magnet and manual button.






















Technology Parameter

The closing magnet use solenoid type magnet,the detail as belows:

Rated work voltage(V) 110 220 -48 -110 -220
Rated work current(A) 5 4.5 3.8 3.5 3.2
Rate work power(W) 374 330 158 319 220
20 resistance of coil(��) 14.9��0.7 54��2.7 14.9��0.7 37��0.9 221.5��5.5

The voltage scope of normal opening 65%-120% of the rated work voltage.Can't opening if less than 30% of the rated work voltage

The voltage scope of normal closing 85%-110% of the rated work voltage